Drill mounting



July 4, 1933. v. 1 scoTT DRILL MOUNT I NG Filed June 16, 1950 L'l'l I 7 Z8 0 1l Z7 34 32 h l x 'I l 'ulilfim l". Wl @w4- f mig!!lt '5| u m V www' Z7- Z5 8" i 2q v INVENTOR; 5 J r v l//o/of' L. 560/7;

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Patented July 4, 1931?y WTED STATES' innate VICTOR L. SCOTT, 0F OTTUMW, IOWA DRILL MOUNTING Application led June 1,6,

"Elie present invention relates tok drilling apparatus, With particular reference' tothe means for mounting the' drilling machine in operative relation tol aipost or column struc'- t-ure. Accordingly,y the object ofi my invention is to devise an improved andE more eiicient type or" drill mounting member for the attachment and support of the drilling machine in this operative relation.

Primarily, the invention comprises an improved constructionl W-liereby the drilling machine may be. supported as closely as possible to the vertical anis of the post 0r coliumn structure, with provision for appropriately adjusting the `drilling machine in' a universal` mannen to accommodatethe macliine in any required operativeposition. It is also sought' to devise an improved type of drill mounting which maybe mounted in po'- sition-upon.- the post or columnl support as easily and'quiclly as possible, Witli a minimum of eliiort and? attention onv the part of'a single Workman.

A further object of the invention is to' provide any improved construction' oiftbis character which will afford a maximum of security in the' attachment' and support ofthe drilling. machine., in addition to" adaptingthe samey to be easily andquiclily mounted orremoved'from operative position; and With` the liin'tlier object of' 'producing a' supporting' structure which is mechanically correct and eilieient',.relieving the operating parts of thev drilling machine oiunnecessary strain, While promoting tlie` accuracy of'thedrilling operation.

v Witli the foregoing'general' objects in view, aswell as 1n incr objects as Willi appear in the course of: the` detailed specilicat'iomthe -involition will norv be described" by' reference to the accompanying drawing' Yillustrating yone practical' embodiment oi" the proposed improvements, after which those features and combinations deemed tobe novel' Will: be particularly set fortlii and claimed.

ln the drawing#- Figure lA is `an elevation, illustrating` val portion oa support or column member, having attached'thereto a drill mounting constructed in accordance with the present invention;

seriali No. 461507.

FigureQ' is arplanview of the drill mounting member, detached from the post or'column;

Figure-3 is a vertical sectionalview7 representing' a section on the line 3 3 of Figure a square forni of column or post member' 6 f-' ofthe type' using-an extensible jack rody 7 as illustrated'.inr my copen'ding application Se-v rial` Number elbl",506lk 'One' side ofthe-body orbracliet member 5 ittedrvit-h a: clamping screw 8 adapted ,for TS clamping .engagement with the correspond ing face of the column 6'-, for' securing vthe mounting in any desired position of vertical adjustment. The out-er endv of this screWB is provided withI aA svvivel'edlv handle element 9, for convenience". in the manual operation of" the screw 8T. j

@ne'corner of t'lie'body member or bracket 5l termedr with a pair or" spaced lug or bracketelements l() inl which is mounted a ca' pivot bolt 1l for the pivotal mounting of a liand lever 1'2 wliieli'is formed With a ratchet finger 14? for suitable' engagement With a series oiiratcliet teeth l5', ofivhich a vertical series is provided in the adjacent corner of S55 the post or columnmember 6 as clearly represented inl Figure l.

The ratchet linger 14 is maintained normally" in engagement with the teethv l'by the action ot a coil spring 16vinterposed S3 between the adjacent corner of the body member 155= and a linger element 17 projecting upwardly from the lever l2 above the bracket lugs- 10,.as"illustratedj in Figure l. The

ratchet linger is alsoformed -Witli'adepend- V' ing lug 1li" adapted to engage aV stop 14 for limiting the movement of the ratchet finger by' said spring 16', andthereby facilitating the mounting or thecasting 5 upon the col umn 6. The arranffement and construction i?" are such that the lever 12 constitutes aA convenient lifting handle in raising or lowering the drill mounting, and the pressure applied in this operation automatically disengages the ratchet tooth or linger 11i-trom the ratchet teeth 15, for permitting the shitting ot the body or bracket member 5, whereas upon release ot the lever 12 the ratchet tinger 111 automatically engages said teeth 15 for relatching the drill mounting in its new position of adjustment. After this, the screw 8 may be used, it desired, for securely locking the drill mounting in this position.

Another of the lateral faces of the body or bracket member 5 is formed with a dovetail socket tor the receiving and clamping of the head or disk member 18 which is provided on the drilling machine (ot which only a portion is shown as indicated by the reference .numeral 19) for the purpose of mounting the machine in operative position by attachment to the post or column structure 6. This receiving socket comprises a pair ot oppositely facing wedge-shaped grooves or channels 20, located at opposite sides, above and below, ot the iiat tace 21 provided b y the adjacent side ot the bracket member 5 and constituting` the base or bottom of the drill head receiving` socket. By reference to Figures 8 and 4i, it will be observed that at the open ends of the channels or grooves 20, constituting` the receiving end of the socket, for admittingthe disk 18, where the grooves or channels 2O are farthest apart, the first halt of each channel is practically straight, with the result that these receiving port-ions of the channels are parallel; while the remaining or disk loc-king portions of the channels are curved for conforming substantially to the curvature ot the disk 18, as required Afor clamping and locking purposes.

For forming in eect a three-point locking action, that tace of the bracket member 5 opposite to the screw 8 is formed with a pair of lugs or bracket elements 2% connected by a pivot pin 24 with which is slidingly engaged a latch member 25 provided with a partly curved slot 26 for engagement with the pin 241, as clearly shown in Figure 2. One end of the latch member 25 is formed with a nose .or hook terminal 27 for engagement with the disk or drill head 18 at the opening into the dovetail socket, while the opposite end ot the latch is threaded for the mounting of a retaining or locking` screw 28. The outer end otthis screw 28 is provided with a knob 29. whereby the inner end ot the screw may be operated into retaining engagement with a swinging detent or tak-cup member 30 pivotally mounted upon a pin 31 carried by a bracket 32 on the side of the body member 5 opposite to its receiving socket. rlhe end Vtace ot the pivoted member 30 constitutes an abutment surface 33 for engagement with the inner end of the screw 28, whereby the hook portion 27 oit the latch member 25 is operated into clampin engagement with the disk 18. The member 8O is provided with a tail piece 34- adapted to rest upon the adjacent end of the latch member 25, whereby the element 8O may be maintained in substantially horizontal (elevated) position regardless ot whether the latch member 25 is in latched or unlatched position, thus insuring that the member 30 is supported at all times in operative relation to the end of the screw 28.

it will thus be seen that an eihcient and conveniently operated device is provided for supporti g the dlling machine in any necessary position of adjustment, and a simple and inexpensive construction takes care of ll the des red objects ot my invention. The drill mounting 5 is easily shifted into any position, and locked it deemed necessary by means oi" the clamping screw 8. When the drilling machine is to be mounted on the bre et 5, the screw 28 is loosened slightly ano. the member 8O is raised sufficiently to clear they latch member 25 to allow the latter to swing into retracted position as shown by the dotted lines in Figure 2, to permit the head or disk member 18 to be inserted into the socket grooves 20.

By virtue of the receiving ends of the groei/'es 2O being straight and parallel, it will be evident that the mere insertion of the disk into this portion oit the socket lends support to the drilling machine even without .any clamping of the disk by the latch 25, and that even the drilling may be proceeded with, if need be, without the clamping action of the latch men'iber 25, since the drilling pressure is such as to torce the disk 18 back into the narrow end ot the socket. The construction therefore ai'io'rds what may be termed a oneman proposition, since the machine can be mounted and held in place without necessarily being tightened or clamped,`or this tightening operation tor clamping the machine can he attended to .vithout any diculty by a single operator. since there is no material danger of the machine becoming dislodged, and the clamping means provides a quick-acting clamp adaptedk ttor easy operation and securely clamping action tor locking the disk 18 within the socket. The same is true as regards the removal of the machine from its supported position, the latch 25 being quickly disengaged by a retracting operation of the screw 28, thereby disengaging the hook clement 27 trom the disk 18 (as illustrated by the d otted lines in Figure 2).

llhus a drill mountin structure is provided which permits all necessary adjustments of the marhines position, either as to variation in the elevation ot the machine upon the post or columa support G, or pivotally about a vertical a.\:is (by vmovement with said post around its vertical anis, as explained in my p after simply loosening the clamping element 25, as will be readily and clearly understood. It is of course evident that the machine can be swung in a complete circle by means of thek described mounting structure and yet locked rigidly and securelyin any desired position.

The accuracy of adjustment, as welly as the security of the supporting functions provided by the described construction, promotes not only greater drilling speed and accuracy in the drilling operation, but relieves any unnecessary strains upon tlie tools, such as 'the augers, cutters and other drill parts, which are often caused by faulty alinement or a sup-v porting structure which is not entirely rigid. Such accuracy and rigidity in the supporting structure are material factors in the reduction of maintenance cost .and elimination of frequent repairs.

IVhile I have described what I now regard as the preferred mode of practicing my invention, and embodying the improved features of construction, I desire to reserve the right to make such changes or modifications as may fairly fall within the scope of the appended claims.

Wha-t I claim is:

1. A drill mounting for drilling machines comprising a bracket member formed with a drill disk receiving socket, a pivoted and sliding latch member mounted opposite the receiving end of `said socket for clamping engagement with the disk, a clamping screw carried by one end of said latch member for actuating the same into latching position, and

a movable abutment element carried by said bracket member in position for engagement with one end of said screw.

2. A drill mounting for drilling machines comprising a bracket member formed with a drill diskreceiving socket, a pivoted and sliding latch member mounted opposite the vreceiving end of said socket for clamping engagement. with the disk, a clamping screw carried byone end of said latch member for actuating the same into latching position, and a movable abutment element formed with a projection supported by said latch member for maintaining said element in position for engagement by'one endl of said screw.

VICTOR L. SCOTT. 

